Well if it works on imported OBJ's fine, but That's a Script process, not a built in Poser feature. You might check the Poser Python forum and see if there's a script that will smooth as well. Me personally, I load anything I need subdiveded and smoothed into ZBrush 2.0 and it takes like 4 clicks. I wasn't aware there was a script for subdividing simply because I don't use much Python in Poser yet, aside from PhilC's Wardrobe Wizard and some dabbling with Kamiliche's PuppetMaster.